膵切除術後の膵島採取収量予測における光干渉弾性イメージングの応用
Ekaterina Gubarkova1, Ekaterina Vasilchikova1, Arseniy Potapov1
1Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, 603950 Nizhny Novgorod, Russia.
Diagnostics (Basel, Switzerland)
|January 28, 2026
まとめ
光学干渉弾性イメージング(OCE)は、膵臓の硬さを定量化してランゲルハンス島の採取収量を予測します。この方法は、膵切除術後の膵島分離に適した組織を特定するのに役立つ術中評価を支援します。
科学分野:
- 生物医学工学
- 腫瘍外科
- 内分泌学
背景:
- 糖尿病治療のための膵切除術後のランゲルハンス島分離において、術中の膵臓の品質評価は非常に重要です。
- 現在の方法では、膵島の採取収量を予測する定量的な精度が不足しています。
研究 の 目的:
- 光干渉弾性イメージング(OCE)を用いて膵実質の硬度を評価すること。
- 膵切除術後のランゲルハンス島採取収量の指標としてOCEを調査すること。
主な方法:
- 41例のヒト膵臓検体を用いて、圧縮OCEにより硬度(ヤング率)を測定しました。
- 健常膵実質、線維症、および膵管腺癌(PDAC)浸潤組織の間で硬度値を比較しました。
- コラゲナーゼ処理後の分離膵島収量と硬度を相関させました。
主要な成果:
- OCEは、膵臓病変と健常膵実質を効果的に区別しました。
- 線維症またはPDAC浸潤組織では、有意な硬度の上昇(p < 0.0001)が認められました。
- 効率的な膵島分離(≥120個/g)に最適な硬度範囲(75-150 kPa)が特定されました。
結論:
- OCEは、膵臓組織の品質を迅速かつ客観的に術中評価できます。
- この技術は、ランゲルハンス島分離に最適な組織を選択するのに役立ちます。
- OCEは、手術中の膵島採取収量の予測精度を向上させます。
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